<?php 
session_start();
?>
<html> 
<head> 
	<style type="text/css" media="all">
		@import url(css/style.css);
	</style>
    <title> 
        <?php 
			$h="session";
			echo $h; 
		?>
    </title>
</head>
	 
<body>

<?php
	if(!isset($_SESSION["a"])) $_SESSION["a"]=0;
?>

<center><h1><?php echo $_SESSION["a"];?></h1></center>

<?php
	$_SESSION["a"]++;
?>
</body> 
</html>
